The Actual Definition of Muscle Tone. Muscle tone, also known as muscle tonus or residual muscle tension, is an unconscious low level contraction of your muscles while they are at rest. Essentially, muscle tone is what makes your muscles still feel somewhat firm while you are resting and not intentionally tensing them.
Everyone experiences abdominal pain from time to time. Other terms used to describe abdominal pain are stomachache, tummy ache, gut ache and bellyache. Abdominal pain can be mild or severe. It may be continuous or come and go. Abdominal pain can be short-lived (acute) or occur over weeks and months (chronic).
Abdominal pain is generally classified as a dull, constant ache, the sensation of burning or tingling, or sharp stabbing pains in the stomach area. Although the pain feels like it is coming from the stomach, the stomach is only one organ that could be affected when abdominal pain is present. Other organs that may be affected include the appendix, pancreas, kidneys, intestines and gallbladder.